overlay

问题 Based on this answer Overlay divs on scroll I am trying to do the same effect. As you scroll the sections are being overlayed in the same place-- one stacked on top the next. On firefox - IE is working fine but on chrome (last version - Version 31.0.1650.63 m) when you scroll and the next slide start to coming the content of the section, that being overlapped, are being bounced. The logic: When the next slide/section is coming set position:fixed; to the section that will be overlapped. The

问题 I'm not sure if this could work, but I've got pictures of maps with #'s inside a little box on top of the map to show locations. See my image example: I'm hoping to find a script to 'scan' the image and create links from the number locations (and overlay those links where the boxes are) In the image example, all the boxes have a 3 in them, but on the other maps they may go from 1 to 400. So I'm hoping to be able to get a link overlay on the boxes sending to another image. Ie, map box #3 would

问题 I'm trying to create image slideshow with slide transition using ffmpeg and the following command: ffmpeg -loop 1 -i img1.jpg -loop 1 -i img2.jpg -loop 1 -i img3.jpg ^ -filter_complex ^ "nullsrc=size=800x600[v0]; ^ [0:v]trim=duration=5,scale=800x600,setpts=PTS-STARTPTS[v1]; ^ [1:v]trim=duration=5,scale=800x600,setpts=PTS-STARTPTS[v2]; ^ [2:v]trim=duration=5,scale=800x600,setpts=PTS-STARTPTS[v3]; ^ [v0][v1]overlay=x='min(-w+(t*w/0.5)\,0)':shortest=1[vv0]; ^ [v1][v2]overlay=x='min(-w+(t*w/0.5)\

问题 I'm working on a project where I am utilizing tile overlays (visual) to display a rendering of the space, building names, accessibility, and parking spaces as well as KML polygons (functionality) to allow the user to click on various buildings or points of interest to bring up further information. My current issue lies in the organization of these various elements. At the moment, the KML polygons are appearing above all the tile overlays, including building names and parking which I would

问题 I would like to implement a notification mechanism in a firefox extension equal to firefox's "save password" option or popup blocking warning with the yellow bar sliding in above the main window. Does anybody now how this can be achieved in XUL? Thanks for any help. 回答1: You'll want to use the notifcationbox element for this. 回答2: Thanks to the hint of sdwilsh, a wrote the following code to achive my goal: var notificationBox = gBrowser.getNotificationBox(); notificationBox.appendNotification

问题 I have tried to overlay an image on a video asset and also thought of there should be some way to overlay an alpha channel video on another video. Is there any way to overlay an alpha channel video on another video asset? 来源： https://stackoverflow.com/questions/17909906/avfoundation-to-overlay-an-alpha-channel-video-on-another-video

问题 I would like to reproduce the following screen in Phonegap, overlaying thumbnails and a button over the camera view How can this be achieved to work on both Android and iOS, I am open to ideas Thanks 来源： https://stackoverflow.com/questions/20910916/how-to-overlay-controls-over-a-camera-view-in-phonegap-3-2-0

问题 I have an android app that displays a VideoView with buttons in front of it. On the target device the buttons display on top properly until the VideoView redraws itself (for instance when returning from another activity). Then the buttons are hidden by the VideoView. This does not occur on two other devices, and as far as I can tell this is not expected behavior in Android. I believe it has to do with an error I see thrown on the device. The tag is 'TIOverlay' and the text is 'static void

问题 I have a website using the Google-maps Javascript API V3. I would like to highlight the region of interest by placing a semi-transparent color on top of the map with a hole cut in the middle. See image attached. The position of the cut-out could be anywhere. I am able to calculate the pixel (or lat/lng) coordinates of the cut-out, but what I'm struggling with is how best to create a mask. I've had a look at Google's image tile overlays and polygons but couldn't see a simple way to achieve

问题 I'm trying to get a text overlaying a video and behave accordingly to its resizing. Currently my trouble is to make the container of the video at the same size as the player (as well as in fullscreen mode). My container is positioned relatively and both my video and text overlay div are positioned absolutely: HTML: <div id="container"> <video id="videoPlayer" controls="true"></video> <div id="videoCaption"></div> </div> CSS: #container { position: relative; } #videoPlayer{ position: absolute;